External anti-explosion cover for petroleum and petrochemical pump body

Abstract

An external anti-explosion cover of a petroleum and petrochemical pump body comprises a second anti-explosion cover and a first anti-explosion cover, the second anti-explosion cover and the first anti-explosion cover are jointly connected with a driving device in a supporting table, a short supporting column on the supporting table is connected with a petroleum and petrochemical pump mounting support, and a cooling fan is fixed to one side of the second anti-explosion cover. A temperature sensor and a buzzer are arranged on the inner wall and the outer wall of the top end of the second anti-explosion cover respectively, a heat dissipation opening is formed in one side wall of the first anti-explosion cover, an upper limiting plate, a side baffle and a lower limiting plate are fixed to the outer wall around the heat dissipation opening, a filter plate slides between the upper limiting plate and the lower limiting plate, and a limiting box is arranged on the inner wall around the heat dissipation opening. The second anti-explosion cover and the first anti-explosion cover can automatically move under the action of the driving device, manual labor is saved, the ventilation device is installed, the anti-explosion cover can automatically move under the action of the first anti-explosion cover, and the anti-explosion cover can automatically move under the action of the second anti-explosion cover and the first anti-explosion cover and can automatically move under the action of the driving device. The problem that a traditional explosion-proof cover cannot effectively dissipate heat is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of explosion-proof covers for pumps, specifically to an external explosion-proof cover for an oil and petrochemical pump. Background Technology

[0002] Oil and petrochemical pumps are the most widely used transmission equipment in petrochemical production plants, mainly used to transport various liquid media, such as crude oil, refined oil, chemical raw materials, intermediate products, and finished products. These pumps typically have high performance requirements and strict safety standards to adapt to the special properties of petrochemical media, such as high temperature, high pressure, and corrosiveness. Because oil and petrochemical pumps operate in flammable and explosive environments such as petroleum and chemicals, there is a risk of sparks and contact with flammable substances; therefore, explosion-proof covers are required to ensure safety. However, existing explosion-proof covers for oil and petrochemical pumps have the following drawbacks:

[0003] 1. When maintaining and repairing oil and petrochemical pumps, it is necessary to remove the explosion-proof cover. However, due to the large weight and size of the explosion-proof cover and its difficulty in moving it, the operator's physical strength is greatly consumed, and the disassembly and assembly process is relatively complicated. Improper operation can easily cause injury to the operator.

[0004] 2. Existing explosion-proof covers lack heat dissipation function. After the oil and petrochemical pump has been used for a long time, the heat generated by the oil and petrochemical pump will accumulate inside the explosion-proof cover and cannot be dissipated, which will cause the temperature inside the explosion-proof cover to rise, thus easily affecting the safe use of the oil and petrochemical pump and the explosion-proof cover. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an external explosion-proof cover for petroleum and petrochemical pumps that can automatically open and close under the action of a drive device, saving manual labor. In addition, a ventilation device is installed, which solves the problem that traditional explosion-proof covers cannot effectively dissipate heat.

[0006] The technical solution adopted in this utility model is an external explosion-proof cover for an oil and petrochemical pump, including an explosion-proof cover body. The explosion-proof cover body is composed of a second explosion-proof cover and a first explosion-proof cover. The second explosion-proof cover and the first explosion-proof cover are connected to a driving device. The driving device is located inside a support platform. A short support column is fixed on the support platform. An oil and petrochemical pump mounting bracket is fixed on the short support column. The bottom ends of the second explosion-proof cover and the first explosion-proof cover are both located between the oil and petrochemical pump mounting bracket and the support platform. A cooling fan bracket is fixed on one inner wall of the second explosion-proof cover. A cooling fan is installed on the cooling fan bracket. A temperature sensor is installed on the inner wall of the top of the second explosion-proof cover. A second control panel and a buzzer are installed on the outer wall of the top of the second explosion-proof cover. A first control panel is installed on the outer wall of the top of the first explosion-proof cover. A heat dissipation vent is provided on one side wall of the first explosion-proof cover. An upper limit plate, a side baffle, and a lower limit plate are fixed on the outer wall around the heat dissipation vent. A filter plate slides between the upper limit plate and the lower limit plate. A limit box is installed on the inner wall around the heat dissipation vent. Ventilation holes are provided on three side walls of the limit box. An insertion strip hole is provided on the top of the limit box. A liftable protective device is installed on the inner side wall of the first explosion-proof cover.

[0007] The driving device includes a motor support located within a support platform, on which a movable motor is mounted. The movable motor is connected to a bidirectional threaded rod, the tail end of which is connected to a short rotating shaft. The short rotating shaft is connected to a first bearing fixed on a bearing support. A first movable block and a second movable block are threadedly connected to both sides of the bidirectional threaded rod, respectively. The bottom end of the first movable block is connected to a first sliding rod, which is connected to a first sliding block located within a sliding groove. The sliding groove is fixed within the support platform. The top end of the first movable block is connected to a first explosion-proof cover via a first support rod. The bottom end of the second movable block is connected to a second sliding rod, which is connected to a second sliding block located within a sliding groove. The top end of the second movable block is connected to a second explosion-proof cover via a second support rod.

[0008] The liftable protective device includes a lifting motor fixed to the inner wall of the first explosion-proof cover. The lifting motor is connected to an output shaft, which passes through a drum and connects to a second bearing. The second bearing is fixedly connected to a bearing rod, which is fixed to the inner wall of the top of the first explosion-proof cover. A lifting rope is wound on the drum, and the lifting rope is connected to a lifting ring. The lifting ring is fixed to an explosion-proof baffle. A first side baffle and a second side baffle are respectively provided on both sides of the explosion-proof baffle. The sides of the first side baffle and the second side baffle are connected to a side support rod, and one end of the side support rod is fixed to the inner wall of the first explosion-proof cover.

[0009] The first and second explosion-proof covers are provided with the same limiting strip-shaped perforations at their bottom ends. The width of the limiting strip-shaped perforations is greater than the width of the short support. There are a total of 4 short support columns, which are located between the 2 limiting sliding strip holes. The first and second support rods pass through the limiting sliding strip holes.

[0010] The first and second explosion-proof covers are provided with semi-circular notches on their side and top surfaces. There are a total of 4 semi-circular notches, and every 2 semi-circular notches can be combined to form a circle.

[0011] The length and width of the insertion strip hole must be greater than the length and width of the explosion-proof baffle.

[0012] The temperature sensor is electrically connected to a buzzer, and the buzzer is electrically connected to an alarm in the control room.

[0013] The second control panel is electrically connected to the cooling fan and the lifting motor, respectively, as is the first control panel.

[0014] Both the first and second explosion-proof covers have explosion-proof sealing strips affixed to their outer edges.

[0015] The beneficial effects of this utility model are as follows: This utility model is equipped with a drive device, a first explosion-proof cover, and a second explosion-proof cover. When maintenance of the petroleum and petrochemical pump is required, the drive device can drive the first and second explosion-proof covers to move, eliminating the need for the traditional manual disassembly and movement of the explosion-proof covers. This reduces the labor intensity of operators and avoids the problem of the protective cover causing injury to operators due to improper operation.

[0016] This invention includes a liftable protective device, a cooling fan, a limiting box, and a heat dissipation vent. Ventilation holes are provided on the three side walls of the limiting box. When rapid heat dissipation is required, the explosion-proof baffle can be raised first using the liftable protective device, and then the cooling fan can quickly dissipate the heat from the petroleum and petrochemical pump and the first and second explosion-proof covers. This solves the problem that the heat inside the petroleum and petrochemical pump and traditional explosion-proof covers cannot be dissipated, leading to an increase in temperature inside the traditional explosion-proof cover, which can easily affect the safe use of the petroleum and petrochemical pump and traditional explosion-proof covers. Furthermore, when the explosion-proof baffle is lowered, air inside and outside the first and second explosion-proof covers can still circulate through the ventilation holes and heat dissipation vent, which is beneficial for natural heat dissipation.

[0017] In this invention, a temperature sensor and a buzzer are provided. The temperature sensor can detect the temperature inside the first and second explosion-proof covers in real time. When the temperature exceeds the set value, the buzzer can alert the staff at the site and control center to prevent accidents from occurring.

[0018] In this invention, a filter plate is provided on the outside of the heat dissipation port to filter impurities in the outside air. At the same time, the filter plate can slide between the upper limit plate and the lower limit plate, making it easy to remove the filter plate for cleaning and helping to maintain the filtering effect of the filter plate.

[0019] In this invention, when the explosion-proof baffle falls, it can effectively protect the heat dissipation vent, thus improving the safety of this invention. At the same time, the setting of the first side baffle and the second side baffle helps the explosion-proof baffle to remain vertical when it is raised and lowered, and helps the explosion-proof baffle to be smoothly inserted into the limiting box through the insertion strip hole. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the heat dissipation port structure of this utility model.

[0022] Figure 3 This is a schematic diagram of the limiting box and vent of this utility model.

[0023] Figure 4 This is a schematic diagram of the limiting box and the insertion strip hole of this utility model.

[0024] Figure 5 This is a partial structural side view of the present invention.

[0025] Figure 6 This is a top view schematic diagram of the limiting strip perforation of this utility model.

[0026] Figure 7 This is a top view schematic diagram of the short support column and the limiting sliding strip hole of this utility model.

[0027] Figure 8 This is a front view schematic diagram of the lifting ring and explosion-proof baffle of this utility model.

[0028] In the diagram: 1. Support platform; 2. Bidirectional threaded rod; 3. Moving motor; 4. Motor support; 5. First moving block; 6. First slider; 7. First sliding rod; 8. Second slider; 9. Second sliding rod; 10. Second moving block; 11. Slide groove; 12. Bearing support; 13. First bearing; 14. Short shaft; 15. Second support rod; 16. Short support column; 17. Petrochemical pump mounting support; 18. Cooling fan support; 19. Cooling fan; 20. Second explosion-proof cover; 21. Second control panel; 22. Buzzer; 23. Temperature sensor; 24. Semi-circular... 25. Opening, 26. First explosion-proof cover, 27. First control panel, 28. Second bearing, 29. Lifting ring, 30. Explosion-proof baffle, 31. Limit box, 32. Bearing lifting rod, 33. Drum, 34. Output shaft, 35. Lifting motor, 36. Lifting rope, 37. Upper limit plate, 38. Side baffle, 39. Filter plate, 40. Lower limit plate, 41. First support rod, 42. Limit sliding strip hole, 43. Limit strip through hole, 44. Vent hole, 45. Insertion strip hole, 46. Heat dissipation vent, 47. Side support rod, 48. First side baffle, 49. Second side baffle. Detailed Implementation

[0029] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0030] Referring to the accompanying drawings, an external explosion-proof cover for an oil and petrochemical pump body includes an explosion-proof cover body composed of a second explosion-proof cover 20 and a first explosion-proof cover 25. The second explosion-proof cover 20 and the first explosion-proof cover 25 are connected to a drive device located within a support platform 1. A short support column 16 is fixed on the support platform 1, and an oil and petrochemical pump mounting bracket 17 is fixed on the short support column 16. The bottom ends of both the second explosion-proof cover 20 and the first explosion-proof cover 25 are located between the oil and petrochemical pump mounting bracket 17 and the support platform 1. A cooling fan bracket 18 is fixed to the inner wall of one side of the second explosion-proof cover 20, and a cooling fan 19 is installed on the cooling fan bracket 18. The top of the second explosion-proof cover 20... A temperature sensor 23 is installed on the wall. A second control panel 21 and a buzzer 22 are installed on the top outer wall of the second explosion-proof cover 20. A first control panel 26 is installed on the top outer wall of the first explosion-proof cover 25. A heat dissipation vent 45 is provided on one side wall of the first explosion-proof cover 25. An upper limit plate 36, a side baffle 37, and a lower limit plate 39 are fixed on the outer wall around the heat dissipation vent 45. A filter plate 38 slides between the upper limit plate 36 and the lower limit plate 39. A limit box 30 is installed on the inner wall around the heat dissipation vent 45. Ventilation holes 43 are provided on three side walls of the limit box 30. An insertion strip hole 44 is provided on the top of the limit box 30. A liftable protective device is installed on the inner side wall of the first explosion-proof cover 25.

[0031] The driving device includes a motor support 4 located within a support platform 1. A movable motor 3 is mounted on the motor support 4. The movable motor 3 is connected to a bidirectional threaded rod 2. The tail end of the bidirectional threaded rod 2 is connected to a short rotating shaft 14. The short rotating shaft 14 is connected to a first bearing 13 fixed on a bearing support 12. A first movable block 5 and a second movable block 10 are respectively threaded to both sides of the bidirectional threaded rod 2. The bottom end of the first movable block 5 is connected to a first sliding rod 7. The first sliding rod 7 is connected to a first sliding block 6 located within a sliding groove 11. The sliding groove 11 is fixed within the support platform 1. The top end of the first movable block 5 is connected to a first explosion-proof cover 25 via a first support rod 40. The bottom end of the second movable block 10 is connected to a second sliding rod 9. The second sliding rod 9 is connected to a second sliding block 8 located within a sliding groove 11. The top end of the second movable block 10 is connected to a second explosion-proof cover 20 via a second support rod 15.

[0032] The liftable protective device includes a lifting motor 34 fixed to the inner wall of the first explosion-proof cover 25. The lifting motor 34 is connected to an output shaft 33. The output shaft 33 passes through a drum 32 and is connected to a second bearing 27. The second bearing 27 is fixedly connected to a bearing rod 31. The bearing rod 31 is fixed to the inner wall of the top of the first explosion-proof cover 25. A lifting rope 35 is wound on the drum 32. The lifting rope 35 is connected to a lifting ring 28. The lifting ring 28 is fixed to an explosion-proof baffle 29. A first side baffle 47 and a second side baffle 48 are respectively provided on both sides of the explosion-proof baffle 29. The sides of the first side baffle 47 and the second side baffle 48 are connected to a side support rod 46. One end of the side support rod 46 is fixed to the inner wall of the first explosion-proof cover 25.

[0033] The first explosion-proof cover 25 and the second explosion-proof cover 20 are provided with the same limiting strip-shaped through hole 42 at their bottom ends. The width of the limiting strip-shaped through hole 42 is greater than the width of the short support 16. There are a total of 4 short support columns 16, which are located between 2 limiting sliding strip holes 41. The first support rod 40 and the second support rod 15 pass through the limiting sliding strip hole 41.

[0034] The first explosion-proof cover 25 and the second explosion-proof cover 20 are provided with semi-circular notches 24 on their side and top surfaces. There are a total of 4 semi-circular notches 24, and every 2 semi-circular notches 24 can be combined to form a circle.

[0035] The length and width of the insertion slot 44 are greater than the length and width of the explosion-proof baffle 29.

[0036] The temperature sensor 23 is electrically connected to the buzzer 22, and the buzzer 22 is electrically connected to the alarm in the control room.

[0037] The second control panel 21 and the first control panel 26 are electrically connected to the cooling fan 19 and the lifting motor 34, respectively.

[0038] Both the first explosion-proof cover 25 and the second explosion-proof cover 20 have explosion-proof sealing strips affixed to their outer edges.

[0039] When using the external explosion-proof cover of this petrochemical pump, first start the moving motor 3. The moving motor 3 drives the bidirectional threaded rod 2 to rotate. The rotation of the bidirectional threaded rod 2 causes the first moving block 5 and the second moving block 10 to move towards the center at the same time. The first moving block 5 then drives the first support rod 40 to move, causing the first explosion-proof cover 25 to move towards the center. The second moving block 10 drives the second support rod 15 to move, causing the second explosion-proof cover 20 to move towards the center. Finally, the explosion-proof sealing strips on the first explosion-proof cover 25 and the second explosion-proof cover 20 are brought together and tightly sealed, thus completing the enclosure of the first explosion-proof cover 25 and the second explosion-proof cover 20.

[0040] When the first explosion-proof cover 25 and the second explosion-proof cover 20 move toward the middle at the same time, the short support 16 will enter the limiting strip perforation 42 and will not hinder the movement of the first explosion-proof cover 25 and the second explosion-proof cover 20.

[0041] When rapid heat dissipation is needed within the first explosion-proof cover 25 and the second explosion-proof cover 20, or when the temperature sensor 23 detects that the temperature inside the first explosion-proof cover 25 and the second explosion-proof cover 20 exceeds a set value, the temperature sensor 23 will transmit a signal to the buzzer 22, which will then sound an alarm to alert on-site personnel. Simultaneously, the buzzer 22 will also activate the alarm in the control room to alert personnel there. At this time, on-site personnel will then start the lifting motor via the first control panel 26. 34. The lifting motor 34 drives the output shaft 33 to rotate, causing the drum 32 to rotate. The drum 32 then winds up the lifting rope 35, causing the lifting ring 28 to rise. The lifting ring 28 then drives the explosion-proof baffle 29 to rise. Once the explosion-proof baffle 29 is fully raised, the cooling fan 19 is activated via the second control panel 21. The cooling fan 19 then blows air towards the petroleum and petrochemical pump body and the vent 43, allowing the heat from the petroleum and petrochemical pump body and the air to be quickly dissipated from the vent 43 and the heat dissipation port 45.

[0042] In this utility model, a drive device, a first explosion-proof cover 25, and a second explosion-proof cover 20 are provided. When maintenance of the petroleum and petrochemical pump is required, the drive device can drive the first explosion-proof cover 25 and the second explosion-proof cover 20 to move. This eliminates the need for the traditional manual disassembly and movement of the explosion-proof cover, reducing the labor intensity of the operators and avoiding the problem of the protective cover causing injury to the operators due to improper operation.

[0043] This invention includes a liftable protective device, a cooling fan 19, a limiting box 30, and a heat dissipation port 45. Ventilation holes 43 are provided on the three side walls of the limiting box 30. When rapid heat dissipation is required, the explosion-proof baffle 29 can be raised first via the liftable protective device, and then the cooling fan 19 can quickly dissipate the heat from the petroleum and petrochemical pump and the first and second explosion-proof covers 25 and 20. This solves the problem that the heat inside the petroleum and petrochemical pump and the traditional explosion-proof cover cannot be dissipated, leading to an increase in temperature inside the traditional explosion-proof cover, which can easily affect the safe use of the petroleum and petrochemical pump and the traditional explosion-proof cover. Furthermore, when the explosion-proof baffle 29 is lowered, air inside and outside the first and second explosion-proof covers 25 and 20 can still circulate through the ventilation holes 43 and the heat dissipation port 45, which is beneficial for natural heat dissipation.

[0044] In this utility model, a temperature sensor 23 and a buzzer 22 are provided. The temperature sensor 23 can sense the temperature inside the first explosion-proof cover 25 and the second explosion-proof cover 20 in real time. When the temperature exceeds the set value, the buzzer 22 can remind the staff at the site and control center to avoid accidents.

[0045] In this invention, a filter plate 38 is provided on the outside of the heat dissipation port 45 to filter impurities in the outside air. At the same time, the filter plate 38 can slide between the upper limit plate 36 and the lower limit plate 39, making it easy to remove the filter plate 38 for cleaning and helping to maintain the filtering effect of the filter plate 38.

[0046] In this utility model, when the explosion-proof baffle 29 falls, it can effectively protect the heat dissipation port 45, thereby improving the safety of this utility model. At the same time, the setting of the first side baffle 47 and the second side baffle 48 is conducive to keeping the explosion-proof baffle 29 vertical when it is raised and lowered, and is conducive to the explosion-proof baffle 29 being smoothly inserted into the limiting box 30 through the insertion strip hole 44.

[0047] The above-described embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation of the present invention. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively describe all possible implementations. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An external explosion-proof cover for an oil and petrochemical pump, comprising an explosion-proof cover body, characterized in that: The explosion-proof cover body consists of a second explosion-proof cover (20) and a first explosion-proof cover (25). The second explosion-proof cover (20) and the first explosion-proof cover (25) are connected to a driving device. The driving device is located inside a support platform (1). A short support column (16) is fixed on the support platform (1). An oil and petrochemical pump mounting bracket (17) is fixed on the short support column (16). The bottom ends of the second explosion-proof cover (20) and the first explosion-proof cover (25) are located between the oil and petrochemical pump mounting bracket (17) and the support platform (1). A cooling fan bracket (18) is fixed on one side of the inner wall of the second explosion-proof cover (20). A cooling fan (19) is installed on the cooling fan bracket (18). A temperature sensor (23) is installed on the inner wall of the top of the second explosion-proof cover (20). The second explosion-proof cover (20) is equipped with a second control panel (21) and a buzzer (22) on the top outer wall. The first explosion-proof cover (25) is equipped with a first control panel (26) on the top outer wall. The first explosion-proof cover (25) has a heat dissipation vent (45) on one side wall. The upper limit plate (36), side baffle (37) and lower limit plate (39) are fixed on the outer wall around the heat dissipation vent (45). A filter plate (38) slides between the upper limit plate (36) and the lower limit plate (39). A limit box (30) is installed on the inner wall around the heat dissipation vent (45). The limit box (30) has ventilation holes (43) on three side walls. The limit box (30) has an insertion strip hole (44) on the top of the limit box (30). A liftable protective device is installed on the inner side wall of the first explosion-proof cover (25).

2. The explosion-proof cover for the external casing of the petroleum and petrochemical pump according to claim 1, characterized in that: The drive device includes a motor support (4) located within a support platform (1), on which a movable motor (3) is mounted. The movable motor (3) is connected to a bidirectional threaded rod (2). The tail end of the bidirectional threaded rod (2) is connected to a short rotating shaft (14). The short rotating shaft (14) is connected to a first bearing (13) fixed on a bearing support (12). A first moving block (5) and a second moving block (10) are threadedly connected to both sides of the bidirectional threaded rod (2). The bottom end of the first moving block (5) is connected to... The first slide rod (7) is connected to the first slider (6) located in the slide groove (11). The slide groove (11) is fixed in the support platform (1). The top of the first moving block (5) is connected to the first explosion-proof cover (25) through the first support rod (40). The bottom of the second moving block (10) is connected to the second slide rod (9). The second slide rod (9) is connected to the second slider (8) located in the slide groove (11). The top of the second moving block (10) is connected to the second explosion-proof cover (20) through the second support rod (15).

3. The explosion-proof cover for an external oil and petrochemical pump body according to claim 1, characterized in that: The liftable protective device includes a lifting motor (34) fixed on the inner wall of the first explosion-proof cover (25). The lifting motor (34) is connected to an output shaft (33). The output shaft (33) passes through a drum (32) and is connected to a second bearing (27). The second bearing (27) is fixedly connected to a bearing rod (31). The bearing rod (31) is fixed on the inner wall of the top of the first explosion-proof cover (25). A lifting rope (35) is wound on the drum (32). The lifting rope (35) is connected to a lifting ring (28). The lifting ring (28) is fixed on an explosion-proof baffle (29). A first side baffle (47) and a second side baffle (48) are respectively provided on both sides of the explosion-proof baffle (29). The sides of the first side baffle (47) and the second side baffle (48) are connected to a side support rod (46). One end of the side support rod (46) is fixed on the inner wall of the first explosion-proof cover (25).

4. The explosion-proof cover for an external oil and petrochemical pump body according to claim 1, characterized in that: The first explosion-proof cover (25) and the second explosion-proof cover (20) are provided with the same limiting strip-shaped through hole (42) at the bottom end. The width of the limiting strip-shaped through hole (42) is greater than the width of the short support (16). There are a total of 4 short support (16) and they are located between 2 limiting sliding strip holes (41). The first support rod (40) and the second support rod (15) pass through the limiting sliding strip hole (41).

5. The explosion-proof cover for an external oil and petrochemical pump body according to claim 1, characterized in that: The first explosion-proof cover (25) and the second explosion-proof cover (20) are provided with semi-circular notches (24) on their side and top surfaces. There are a total of 4 semi-circular notches (24), and every 2 semi-circular notches (24) can be combined to form a circle.

6. The explosion-proof cover for an external oil and petrochemical pump body according to claim 1, characterized in that: The length and width of the insertion slot (44) are greater than the length and width of the explosion-proof baffle (29).

7. The explosion-proof cover for an external oil and petrochemical pump body according to claim 1, characterized in that: The temperature sensor (23) is electrically connected to the buzzer (22), and the buzzer (22) is electrically connected to the alarm in the control room.

8. The explosion-proof cover for an external oil and petrochemical pump according to claim 1, characterized in that: The second control panel (21) and the first control panel (26) are electrically connected to the cooling fan (19) and the lifting motor (34), respectively.

9. The explosion-proof cover for an external oil and petrochemical pump body according to claim 1, characterized in that: Both the first explosion-proof cover (25) and the second explosion-proof cover (20) have explosion-proof sealing strips affixed to their outer edges.

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